Securing the motor in the motor mount is a key safety feature of a model rocket. Motor retainers, motor hooks, and thrust rings are three ways to ensure that your motor stays inside the motor tube to help ensure successful deployment of the recovery device, and to prevent the motor and rocket from an uncontrolled descent.
Public Missiles Ltd.MSRP:Now: $28.95Was:A perfect fit for PML motor tubes, their HAMR motor retainers integrate nicely with PML kits. They secure composite motors nicely in the motor tube and allow you to quickly change motors with a simple twist of the retainer. Manufacturer instructions are...PML-HAMR29-SETMSRP:Now: $28.95Was: